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package eu.dnetlib.index.query;
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import java.util.List;
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import java.util.Map;
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import eu.dnetlib.clients.index.query.IndexQuery;
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import eu.dnetlib.clients.index.utils.IndexFieldUtility;
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import eu.dnetlib.cql.lucene.QueryOptions;
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import eu.dnetlib.cql.lucene.TranslatedQuery;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.apache.solr.client.solrj.SolrQuery;
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import org.apache.solr.common.params.ModifiableSolrParams;
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import org.apache.solr.common.params.SolrParams;
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/**
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* The Class SolrIndexQuery.
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*
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* @author claudio, sandro
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*/
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public class SolrIndexQuery extends SolrQuery implements IndexQuery {
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/**
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* The Constant serialVersionUID.
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*/
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private static final long serialVersionUID = 1L;
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/**
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* logger.
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*/
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private static final Log log = LogFactory.getLog(SolrIndexQuery.class);
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/**
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* Instantiates a new solr index query.
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*
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* @param query the query
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* @param options the options
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*/
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public SolrIndexQuery(final TranslatedQuery query, final Map<String, List<String>> options) {
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this(query.asLucene(), options);
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setCqlParams(query.getOptions());
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log.debug("internal solr query: " + this.toString());
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}
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/**
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* Instantiates a new solr index query.
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*
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* @param query the query
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* @param options the options
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*/
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public SolrIndexQuery(final String query, final Map<String, List<String>> options) {
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this(query);
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// TODO verify that the input options belongs to solr
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super.add(getQueryParams(options));
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}
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/**
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* Instantiates a new solr index query.
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*
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* @param query the query
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*/
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public SolrIndexQuery(final String query) {
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super(query);
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}
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@Override
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public IndexQuery setQueryOffset(final int offset) {
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super.setStart(offset);
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return this;
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}
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@Override
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public IndexQuery setQueryLimit(final int limit) {
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super.setRows(limit);
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return this;
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}
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@Override
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public IndexQuery setQueryFacetLimit(final int limit) {
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super.setFacetLimit(limit);
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return this;
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}
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@Override
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public IndexQuery setQueryFacetOffset(final int offset) {
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super.set("facet.offset", offset);
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return this;
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}
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@Override
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public IndexQuery setDSIdFilters(final List<String> dsIds) {
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if (!isAll(dsIds)) {
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for (String id : dsIds) {
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addFilterQuery(IndexFieldUtility.DS_ID + ":\"" + id + "\"");
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}
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}
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return this;
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}
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/**
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* Checks if is all.
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*
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* @param dsIds the ds id
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* @return true, if is all
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*/
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protected boolean isAll(final List<String> dsIds) {
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return (dsIds != null) && (!dsIds.isEmpty()) && (dsIds.size() == 1) && dsIds.get(0).equalsIgnoreCase(IndexFieldUtility.INDEX_DSID_ALL);
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}
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/**
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* Convert our option map to a solr option parameter map.
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*
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* @param options input paramter map.
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* @return solr option parameter map.
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*/
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private SolrParams getQueryParams(final Map<String, List<String>> options) {
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ModifiableSolrParams params = new ModifiableSolrParams();
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String[] typeTag = new String[] {};
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for (Map.Entry<String, List<String>> entry : options.entrySet()) {
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params.add(entry.getKey(), entry.getValue().toArray(typeTag));
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}
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return params;
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}
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/**
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* Sets the query options.
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*
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* @param options the options.
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*/
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private void setCqlParams(final QueryOptions options) {
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if (options != null) {
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if (options.getSort() != null) {
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super.addSort(options.getSort().getField(), ORDER.valueOf(options.getSort().getMode().name()));
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}
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}
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}
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}
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